24" BANDSAW
MODEL G7211/G7212
INSTRUCTION MANUAL
COPYRIGHT ©1992 BY GRIZZLY INDUSTRIAL, INC.
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
REVISED AUGUST, 2000 PRINTED IN TAIWAN
DISCONTINUED MACHINE MANUAL DISCLAIMER
THE INFORMATION IN THIS MANUAL REPRESENTS THE LAST CONFIGURATION OF THE MACHINE BEFORE IT WAS DISCONTINUED. MACHINE CONFIG-
URATIONS MAY HAVE CHANGED AS PRODUCT IMPROVEMENTS WERE INCORPORATED. IF YOU OWN AN EARLIER VERSION OF THE MACHINE, THIS
MANUAL MAY NOT EXACTLY DEPICT YOUR MACHINE . CONTACT CUSTOMER SERVICE IF YOU HAVE ANY QUESTIONS ABOUT DIFFERENCES. PREVI-
OUS VERSIONS ARE NOT AVAILABLE ONLINE.
WARNING
Some dust created by power sanding, sawing, grind-
ing, drilling, and other construction activities contains
chemicals known to the State of California to cause
cancer, birth defects or other reproductive harm.
Some examples of these chemicals are:
• Lead from lead-based paints.
• Crystalline silica from bricks, cement, and
other masonry products.
• Arsenic and chromium from chemically treated
lumber.
Your risk from these exposures varies, depending on
how often you do this type of work. To reduce your
exposure to these chemicals: work in a well ventilated
area, and work with approved safety equipment, such
as those dust masks that are specially designed to fil-
ter out microscopic particles.
G7211/7212 24" Bandsaw -1-
Table Of Contents
PAGE
1. SAFETY
SAFETY RULES FOR POWER TOOLS ............................................................2-3
ADDITIONAL SAFETY INSTRUCTIONS FOR BANDSAWS ................................4
2. CIRCUIT REQUIREMENTS
220V OPERATION ................................................................................................5
EXTENSION CORDS ............................................................................................5
WIRING DIAGRAM ................................................................................................5
3-PHASE OPERATION ..........................................................................................6
3. INTRODUCTION
COMMENTARY......................................................................................................7
UNPACKING ..........................................................................................................8
PARTS INVENTORY..............................................................................................8
CLEAN UP..............................................................................................................9
SITE CONSIDERATIONS ......................................................................................9
4. ASSEMBLY
FENCE..................................................................................................................10
5. ADJUSTMENTS
TRACKING ..........................................................................................................11
TENSION..............................................................................................................11
WHEEL ALIGNMENT ..........................................................................................12
UPPER GUIDES ............................................................................................12-13
LOWER GUIDES..................................................................................................13
POSITIVE TABLE STOP......................................................................................14
6. OPERATIONS
PRE-RUN CHECK................................................................................................15
BANDSAW BLADES ............................................................................................15
CHANGING BLADES ..........................................................................................16
CHANGING SPEEDS ..........................................................................................17
RIPPING ..............................................................................................................18
STACKED CUTS..................................................................................................18
CUTTING CURVES..............................................................................................19
RESAWING ..........................................................................................................19
7. MAINTENANCE
TABLE ..................................................................................................................20
V-BELTS ..............................................................................................................20
LUBRICATION......................................................................................................21
MISCELLANEOUS ..............................................................................................21
8. CLOSURE..................................................................................................................22
MACHINE DATA................................................................................................................23
PARTS BREAKDOWN AND PARTS LISTS................................................................24-27
WIRING DIAGRAMS ....................................................................................................28-29
WARRANTY AND RETURNS ..........................................................................................30
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G7211/7212 24" Bandsaw
Safety Instructions For Power Tools
SECTION 1: SAFETY
5. KEEP CHILDREN AND VISITORS
AWAY. All children and visitors should be
kept a safe distance from work area.
6. MAKE WORK SHOP CHILD PROOF with
padlocks, master switches, or by removing
starter keys.
7. DON’T FORCE TOOL. It will do the job
better and safer at the rate for which it was
designed.
8. USE RIGHT TOOL. Don’t force tool or
attachment to do a job for which it was not
designed.
1. KEEP GUARDS IN PLACE and in working
order.
2. REMOVE ADJUSTING KEYS AND
WRENCHES. Form habit of checking to
see that keys and adjusting wrenches are
removed from tool before turning on.
3. KEEP WORK AREA CLEAN. Cluttered
areas and benches invite accidents.
4. DON’T USE IN DANGEROUS ENVIRON-
MENT. Don’t use power tools in damp or
wet locations, or where any flammable or
noxious fumes may exist. Keep work area
well lighted.
For Your Own Safety Read Instruction
Manual Before Operating This Equipment
Indicates an imminently hazardous situation which, if not avoided,
WILL result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
COULD result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
MAY result in minor or moderate injury. It may also be used to alert
against unsafe practices.
This symbol is used to alert the user to useful information about
proper operation of the equipment.
The purpose of safety symbols is to attract your attention to possible hazardous conditions. This
manual uses a series of symbols and signal words which are intended to convey the level of
importance of the safety messages. The progression of symbols is described below. Remember
that safety messages by themselves do not eliminate danger and are not a substitute for proper
accident prevention measures.
NOTICE
G7211/7212 24" Bandsaw -3-
9. USE PROPER EXTENSION CORD. Make
sure your extension cord is in good condi-
tion. Conductor size should be in accor-
dance with the chart below. The amperage
rating should be listed on the motor or tool
nameplate. An undersized cord will cause
a drop in line voltage resulting in loss of
power and overheating. Your extension
cord must also contain a ground wire and
plug pin. Always repair or replace exten-
sion cords if they become damaged.
Minimum Gauge for Extension Cords
10. WEAR PROPER APPAREL. Do not wear
loose clothing, gloves, neckties, rings,
bracelets, or other jewelry which may get
caught in moving parts. Non-slip footwear
is recommended. Wear protective hair cov-
ering to contain long hair.
11. ALWAYS USE SAFETY GLASSES. Also
use face or dust mask if cutting operation is
dusty. Everyday eyeglasses only have impact
resistant lenses, they are NOT safety glasses.
12. SECURE WORK. Use clamps or a vise to hold
work when practical. It’s safer than using your
hand and frees both hands to operate tool.
13. DON’T OVERREACH. Keep proper foot-
ing and balance at all times.
14. MAINTAIN TOOLS WITH CARE. Keep
tools sharp and clean for best and safest
performance. Follow instructions for lubri-
cating and changing accessories.
15. USE RECOMMENDED ACCESSORIES.
Consult the owner’s manual for recom-
mended accessories. The use of improper
accessories may cause risk of injury.
LENGTH
AMP RATING 25ft 50ft 100ft
0-6 18 16 16
7-10 18 16 14
11-12 16 16 14
13-16 14 12 12
17-20 12 12 10
21-30 10 10 No
Safety Instructions For Power Tools
16. REDUCE THE RISK OF UNINTENTION-
AL STARTING. On machines with mag-
netic contact starting switches there is a
risk of starting if the machine is bumped or
jarred. Always disconnect from power
source before adjusting or servicing. Make
sure switch is in OFF position before recon-
necting.
17. MANY WOODWORKING TOOLS CAN
“KICKBACK” THE WORKPIECE toward
the operator if not handled properly. Know
what conditions can create “kickback” and
know how to avoid them. Read the manual
accompanying the machine thoroughly.
18. CHECK DAMAGED PARTS. Before fur-
ther use of the tool, a guard or other part
that is damaged should be carefully
checked to determine that it will operate
properly and perform its intended function.
Check for alignment of moving parts, bind-
ing of moving parts, breakage of parts,
mounting, and any other conditions that
may affect its operation. A guard or other
part that is damaged should be properly
repaired or replaced.
19. NEVER LEAVE TOOL RUNNING UNAT-
TENDED. TURN POWER OFF. Don’t
leave tool until it comes to a complete stop.
20. NEVER OPERATE A MACHINE WHEN
TIRED, OR UNDER THE INFLUENCE OF
DRUGS OR ALCOHOL. Full mental alert-
ness is required at all times when running
a machine.
No list of safety guidelines can be com-
plete. Every shop environment is different.
Always consider safety first, as it applies to
your individual working conditions. Use
this and other machinery with caution and
respect. Failure to do so could result in
serious personal injury, damage to equip-
ment or poor work results.
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G7211/7212 24" Bandsaw
Additional Safety Instructions For Bandsaws
No list of safety guidelines can be com-
plete. Every shop environment is different.
Always consider safety first, as it applies to
your individual working conditions. Use
this and other machinery with caution and
respect. Failure to do so could result in
serious personal injury, damage to equip-
ment or poor work results.
7. ALWAYS FEED STOCK EVENLY AND
SMOOTHLY. Do not force or twist blade
while cutting, especially when sawing
small radii.
8. THIS MACHINE IS NOT DESIGNED TO
CUT METAL or other material except
wood.
9. BLADE SHOULD RUNNING AT FULL
SPEED before beginning a cut.
10. DO NOT MANUALLY STOP OR SLOW
BLADE after turning the saw off. Use foot
brake.
11. ALL INSPECTIONS, ADJUSTMENTS,
AND MAINTENANCE ARE TO BE DONE
WITH THE POWER OFF and the plug
pulled from the outlet. Wait for all moving
parts to come to a complete stop.
12. Habits – good and bad – are hard to break.
Develop good habits in your shop and
safety will become second-nature to you.
1. DO NOT OPERATE WITH DULL OR
BADLY WORN BLADES. Dull blades
require more effort to use and are difficult
to control. Inspect blades before each use.
2. NEVER POSITION FINGERS OR
THUMBS IN LINE WITH THE CUT.
Serious personal injury could occur.
3. DO NOT OPERATE THIS BANDSAW
WITHOUT WHEEL, PULLEY, AND
BLADE GUARDS IN PLACE.
4. WHEN REPLACING BLADES, make sure
teeth face down towards the table. The
force of the cut is always down. Make sure
the blade is properly tensioned.
5. CUTS SHOULD ALWAYS BE FULLY
SUPPORTED by the table or some type of
support fixture. Always support round stock
in a V-block.
6. DO NOT BACK WORKPIECE AWAY from
the blade while the saw is running. Plan
your cuts so you always cut out of the
wood. if you need to back the work out,
turn the bandsaw off and wait for the blade
to come to a complete stop. Do not twist or
put excessive stress on the blade while
backing work away.
Always wear ANSI-approved safety glasses
or goggles and hearing protection when
operating equipment — particularly when
testing new tools or machinery. Do not
allow visitors into your workshop when
testing or operating equipment. Serious
personal injury may occur.
G7211/7212 24" Bandsaw -5-
220V Operation
The motor supplied with the G7211 comes
prewired for 220V. Refer to the wiring diagram
supplied at the back of this manual for more spe-
cific information about wiring connections. The
G7212 is a 220V, three-phase motor and requires
special electrical service. See section on three-
phase operation on the next page.
This machine does not come supplied with a plug,
therefore a suitable 220V plug must be wired in.
When operating at 220V, we recommend using a
NEMA-style 6L-15 plug and outlet. See Figure 1.
You may also “hard-wire” the machine directly to
your panel, provided you place a disconnect
switch near the machine. Check the electrical
codes in your area for specifics on wiring require-
ments.
Under normal use, the motor draws approximate-
ly 20 amps @ 220V. We recommend a 25 amp
circuit breaker for 220V operation. This should be
satisfactory for normal use while providing
enough protection against motor damage caused
by power surges.
SECTION 2: CIRCUIT REQUIREMENTS
Figure 1. Typical 220V 3-prong plug and outlet.
We do not recommend the use of extension cords
on 220V equipment. It is much better to arrange
the placement of your equipment and the installed
wiring to eliminate the need for extension cords.
Should it be necessary to use an extension, make
sure the cord is rated Hard Service (Grade S) or
better. Refer to the chart in Section 1: Safety
Instructions to determine the minimum gauge for
the extension cord. The extension cord must also
contain a ground wire and plug pin. Always repair
or replace extension cords when they become
worn or damaged.
Extension Cords
Your G7211 machine comes pre-wired for 220
volt operation. A wiring diagram is provided at the
back of this manual should it be necessary to
repair or revise the wiring. Always utilize a quali-
fied electrician when doing any electrical work on
this equipment.
Wiring Diagram
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G7211/7212 24" Bandsaw
The Model G7212 has a 7.5 H.P. motor config-
ured to operate under three-phase electrical serv-
ice. Generally this type of electrical supply is only
found in commercial or industrial locations.
Connection to three-phase service should only be
done by a qualified electrician.
If you do not have three-phase service available a
phase converter can be utilized in conjunction
with a 220V single phase power supply. Refer to
the Grizzly catalog for a complete range of phase
converters.
3-Phase Operation Notes
We have covered some basic electrical
requirements for the safe operation of your
Bandsaw. These requirements are not nec-
essarily comprehensive. You must be sure
that your particular electrical configuration
complies with local and state codes. Ensure
compliance by checking with your local
municipality or a licensed electrician.
G7211/7212 24" Bandsaw -7-
SECTION 3: INTRODUCTION
Commentary
We are proud to offer the Models G7211/G7212
24" Bandsaws. These bandsaws are part of a
growing Grizzly family of fine woodworking
machinery. When used according to the guide-
lines set forth in this manual, you can expect
years of trouble-free, enjoyable operation and
proof of Grizzly’s commitment to customer satis-
faction.
The Models G7211/G7212 are woodcutting band-
saws with powerful 5 H.P. or 7.5 H.P. motors, cast
iron fence, miter gauge, 4" dust port, foot brake
and micro-adjustable ball-bearing guides. They
feature an all steel construction frame and cast
iron table. A complete range of blades with widths
from
1
⁄2" to 1
1
⁄4" and various tooth styles are avail-
able in the current Grizzly catalog for prices and
ordering information.
We are also pleased to provide this instructional
manual with the Model G7211/G7212 24"
Bandsaws. It was written to guide you through
assembly, review safety considerations, and
cover general operating procedures. It represents
our effort to produce the best documentation pos-
sible. If you have any comments regarding this
manual, please write to us at the address below:
Grizzly Industrial, Inc.
C
/O Technical Documentation
P.O. Box 2069
Bellingham, WA 98227-2069
Most importantly, we stand behind our machines.
If you have any service questions or parts
requests, please notify us using one of the follow-
ing contacts:
Grizzly Industrial, Inc.
1203 Lycoming Mall Circle
Muncy, PA 17756
Phone:(570) 546-9663
Fax:(800) 438-5901
E-Mail: [email protected]
Web Site: http://www.grizzly.com
The specifications, drawings, and photographs
illustrated in this manual represent the Model
G7211/G7212 as supplied when the manual was
prepared. However, owing to Grizzly’s policy of
continuous improvement, changes may be made
at any time with no obligation on the part of
Grizzly. Whenever possible, though, we send
manual updates to all owners of a particular tool
or machine. Should you receive one, we urge you
to insert the new information with the old and keep
it for reference.
To operate this or any power tool safely
and efficiently, it is essential to become as
familiar with it as possible. The time you
invest before you begin to use your Model
G7211/G7212 will be time well spent. DO
NOT operate this machine until you are
completely familiar with the contents of this
manual. Serious personal injury may occur.
-8-
G7211/7212 24" Bandsaw
Unpacking
The bandsaw is shipped from the factory in a
carefully packed carton. If you find the machine to
be damaged after you’ve signed for delivery and
the truck and driver are already gone, you will
need to file a freight claim with the carrier. Save
the containers and all packing materials for
inspection by the carrier or their agent. Without
the packing materials, filing a freight claim can be
difficult. If you need advice regarding this situa-
tion, please call us immediately.
When you are completely satisfied with the condi-
tion of your shipment, you should inventory its
parts.
The G7211/G7212 is a very heavy machine
with a shipping weight of 725 lbs. DO NOT
over-exert yourself while unpacking or
moving your machine – get assistance. In
the event that your bandsaw must be
moved up or down a flight of stairs, be sure
that the stairs are capable of supporting the
combined weight of people and the
machine. Serious personal injury may
occur.
Parts Inventory
NOTICE
Save all containers and packing materials
until you are satisfied that your bandsaw
has arrived in good condition. Freight com-
pany adjusters will want to inspect those
materials in the event that a freight claim
must be made.
Take a quick inventory of the parts and put them
aside for assembly later. After all the parts have
been removed from the container, you should
have:
• Bandsaw Assembly
• Fence Assembly
• Miter Gauge
• Hardware
Cap Screws
5
/16" - 18 x 2
1
/2"2
Fence Rail Spacers 2
Fence Rail 1
In the event that any non-proprietary parts are
missing (e.g. a bolt, nut or a washer), we would
be glad to replace them, or, for the sake of expe-
diency, replacements can be obtained at your
local hardware store.
G7211/7212 24" Bandsaw -9-
Clean Up
The unpainted surfaces are coated with a waxy oil
to protect it from corrosion during shipment.
Remove this protective coating with a solvent
cleaner or citrus-based degreaser such as
Grizzly’s G7895 Degreaser. Avoid chlorine-based
solvents as they may damage painted surfaces
should they come in contact. Always follow the
usage instructions on the product you choose for
clean up.
Site Considerations
FLOOR LOAD
Your G7211/G7212 Bandsaw represents a large
weight load in a small footprint. Most commercial
floors are suitable for the Model G7211/G7212.
Some residential floors may require additional
build up to support both machine and operator.
WORKING CLEARANCES
Working clearances can be thought of as the dis-
tances between machines and obstacles that
allow safe operation of every machine without lim-
itation. Consider existing and anticipated machine
needs, size of material to be processed through
each machine, and space for auxiliary stands
and/or work tables. Also consider the relative
position of each machine to one another for effi-
cient material handling. Be sure to allow yourself
sufficient room to safely run your machines in any
foreseeable operation.
LIGHTING AND OUTLETS
Lighting should be bright enough to eliminate
shadow and prevent eye strain. Electrical circuits
should be dedicated or large enough to handle
combined motor amp loads. Outlets should be
located near each machine so power or extension
cords are not obstructing high-traffic areas. Be
sure to observe local electrical codes for proper
installation of new lighting, outlets, or circuits.
Make your shop “child safe”. Ensure that
your workplace is inaccessible to young-
sters by closing and locking all entrances
when you are away. Never allow visitors in
your shop when assembling, adjusting or
operating equipment.
Many of the solvents commonly used to
clean machinery can be highly flammable,
and toxic when inhaled or ingested. Always
work in well-ventilated areas far from
potential ignition sources when dealing
with solvents. Use care when disposing of
waste rags and towels to be sure they do
not create fire or environmental hazards.
Keep children and animals safely away
when cleaning and assembling this
machine.
Do not use gasoline or other petroleum-
based solvents to remove this protective
coating. These products generally have low
flash points which makes them extremely
flammable. A risk of explosion and burning
exists if these products are used. Serious
personal injury may occur.
All die-cut metal parts have a sharp edge
(called “flashing”) on them after they are
formed. This is generally removed at the
factory. Sometimes a bit of flashing might
escape inspection, and the sharp edge may
cause cuts or lacerations when handled.
Please examine the edges of all die-cut
metal parts and file or sand the edge to
remove the flashing before handling.
-10-
G7211/7212 24" Bandsaw
SECTION 4: ASSEMBLY
Fence
Most of your G7211/G7212 24'' Bandsaw has
been assembled at the factory. Only the fence
assembly requires installation.
To mount the fence to the bandsaw table:
1. Mount the front rail to the table using two (2)
5
/16 - 18 x 2
1
/2'' Cap Screws and the two (2)
Spacers provided. See Figure 2.
2. Loosen the fence lock knob and slide the
fence onto the rail.
Figure 2. Front rail in place and fence installed.
DO NOT attempt any step of assembly,
adjustments, or maintenance while your
Model G7211/G7212 is running. Ensure that
the switch is off, power is disconnected and
moving parts have stopped before making
adjustments. Failure to comply may result
in serious personal injury.
G7211/7212 24" Bandsaw -11-
SECTION 5: ADJUSTMENTS
Tracking
To adjust the tracking:
1. Disconnect the bandsaw from the power
source and open the top and bottom wheel
covers. Adjust the upper and lower guide
assemblies away from the blade.
2. Loosen the lock nut on the tracking knob.
See Figure 3. Rotate the upper wheel by
hand and adjust the tracking knob (turn the
tracking knob clockwise to track the blade
in, counterclockwise to track out) until the
flat body of the blade tracks in the center of
the upper wheel. Turn the wheel at least
three full turns to ensure that the blade is
tracking in its final position.
Figure 3. Tracking knob adjustment location.
Tracking Knob
Use extreme care when turning the bandsaw
wheel. The upper wheel may have sharp
edges and any procedures which require
work in close proximity to the bandsaw
blade could result in serious injury.
Tension
Final blade tension ultimately depends on the
type and size of blade you use. To adjust the ten-
sion:
1. Raise the blade guard to its fully retracted
position.
2. Press, with moderate pressure, on the face
of the blade with your thumb.
3. Turn the tension wheel until the blade
deflects about
1
/4". See Figure 4.
4. Make the other adjustments to the saw and
test run it. If the blade is not cutting proper-
ly, the tension may need to be increased.
Remember, thin blades require less tension
than wide blades.
5. Reduce the blade tension when the band-
saw is not in use. This will help prevent pre-
mature wear or breakage of the blade
and/or rubber tires.
Figure 4. Tension wheel adjustment location.
Tension Wheel
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G7211/7212 24" Bandsaw
Figure 6. Wheel alignment adjusting knobs.
Adjusting Knobs
Figure 5. Wheel alignment conditions.
For proper operation of the bandsaw it is impor-
tant that the upper and lower wheels be aligned
so they are in the same plane. See Figure 5 to
understand the relationship between the wheels.
Wheel Alignment
The adjustment knobs on the upper wheel (See
Figure 6) can be used to correct for deviation in
parallelism between the two wheels. Although this
has been set at the factory, it is a good idea to
check it occasionally to assure proper operation
of your bandsaw. Loosen the check nuts and
adjust as necessary by turning one knob in and
the other knob about the same amount. Adjust in
small increments and check the measurement
between the wheels until the wheels are in align-
ment.
On the G7211/7212 it is not possible to lay a
straightedge across the two wheels to check
coplanarity and parallelism because of the
arrangement of the wheels in the cabinet. The
wheel relationship can be checked by clamping
two blocks of exactly the same size (must be at
least 2" high to extend beyond the cabinet) and
squareness to each wheel (use the large holes in
the wheels for the clamp), then use a straightedge
to check the wheel position. It will be necessary to
remove the fence and the table to perform this
check.
If the wheels are not coplanar, the bearing mount
on the lower wheel can be adjusted to move the
wheel position in or out, or the wheel can be
shimmed on its shaft. This is a major service pro-
cedure, however, and should be undertaken very
carefully. Normally the positioning of the wheels
will not change as long as the saw is properly
cared for and is not dropped or tipped onto its
back or side. Contact Customer Service for more
information on wheel alignment if you are experi-
encing difficulty.
G7211/7212 24" Bandsaw -13-
5. Install your blade of choice. Track and ten-
sion as per the instructions in this manual.
6. Move the blade guide assembly so the
bearing guides are
1
/16" behind blade gul-
lets. Tighten the guide assembly.
7. Now rotate the bearing guide shafts until the
bearings are approximately
1
/64'' from the
blade. Hold the shafts in place with a screw
driver and tighten the bearing guide lock
nuts. The guide bearing, when adjusted cor-
rectly, should have a slight drag against the
blade. If the guide bearings pinch the blade,
it will damage the bearing guides and blade.
8. Slide the rear support bearing until it is approx-
imately
1
/32'' from the blade and tighten.
NOTICE
The bearing guide shaft lock nuts should
only be as loose as necessary to allow the
shafts to rotate. If they are too loose it will
be very difficult, if not impossible, to adjust
the guides accurately.
Normally Steps 1-4 are implemented prior to
installing a new blade. Refer to Figure 8 to iden-
tify the components of the guide assembly.To
adjust the lower guides:
1. Loosen the lower guide lock nuts and
thread the shafts out so the blade guides
are away from the blade.
2. Loosen the setscrew that holds the rear
support bearing in place and slide it back.
3. Loosen the bolts that hold the lower guide
assembly in place and slide the lower guide
back.
Lower Guides
Normally Steps 1-4 are implemented prior to
installing a new blade. Refer to Figure 7 to iden-
tify the components of the guide assembly. To
adjust the upper guides:
1. Loosen the bearing guide shaft lock nuts.
2. The bearing guides are mounted on an
eccentric shaft. With a regular screwdriver,
rotate the guides away from the blade.
3. Loosen the cap screw holding the rear sup-
port bearing in place and slide the rear sup-
port bearing away from the blade.
4. Loosen the cap screw holding the blade
guide assembly in place and slide it back
away from the blade.
Figure 7. Upper blade guide assembly.
Lock Nuts
Rear Support Bearing
Bearing Guides
Guide
Assembly
Upper Guides
-14-
G7211/7212 24" Bandsaw
To adjust the positive stop so the table will be per-
pendicular to the blade:
1. Loosen the trunnion lock handle and check
nut locking the positive stop adjusting bolt.
See Figure 9.
2. Raise the upper blade guide assembly up
and stand a machinist’s square or
adjustable square on the table next to the
side of the blade. Adjust the positive stop
adjusting bolt to raise or lower the table until
the table is 90° to the blade.
3. Secure the trunnion lock handle and lock the
positive stop adjusting bolt by tightening the
lock nut. Ensure that the bolt does not turn
while tightening the lock nut.
4. Adjust the pointer on the table so that i
points directly to 0˚.
Figure 9. Location of positive stop adjustment.
Positive Stop
Positive Table Stop
4. Install blade. Track and tension according
to the instructions in this manual. It is rec-
ommended that you adjust the upper guides
first, then the lower.
5. Slide the lower guide forward so the bearing
guides are
1
/16" behind blade gullets.
Tighten the lower guide assembly.
6. Thread in the lower blade guide adjusters
until the blade guides are approximately
1
/64'' from the blade. Tighten the lock nuts.
7. Slide the rear support bearing until it is
approximately
1
/32'' from the blade and tighten.
Figure 8. Lower blade guide assembly.
Lock Nut
Blade Guide Adjuster
Blade Guide
DO NOT make adjustments while the band-
saw is running. Ensure that the switch is off,
power is disconnected and moving parts
have stopped before making adjustments.
Failure to comply may result in serious per-
sonal injury.
G7211/7212 24" Bandsaw -15-
Pre-Run Check
Bandsaw Blades
SECTION 6: OPERATIONS
The bandsaw is one of the most versatile
machines in the shop. It can cut miters, com-
pound angles, simple and complex curves, cir-
cles, and a wide variety of irregular shapes. It can
also rip and crosscut, as well as cut a variety of
joints. The bandsaw will also resaw stock into
thinner boards.
There are many adjustment points and compen-
sating differences to consider when operating this
type of saw. Therefore, cutting results can be
somewhat unpredictable if some or all of the cru-
cial adjustments are neglected. Here are a few
simple things you can do to increase the pre-
dictability of your bandsaw’s performance:
1. Always use a sharp, high-quality blade.
Although you might save a few dollars ini-
tially, buying a cheap blade will give you
cheap results. As a rule, spending more
now saves you money later.
2. Use the right blade for the job. Resawing
with a
1
/16" blade or doing scrollwork with a
1" blade are extreme examples of using the
wrong blade for the job.
3. Set the top guide assembly so it is just
above the top of the work at all times.
4. Allow the saw to cut. Don’t force the
workpiece into the blade. When cutting
curves or irregular shapes, remember that
while negotiating a curve, the blade should
still be cutting wood. Simply turning the
workpiece will only bind the blade and could
break it.
5. Maintain your bandsaw in top condition.
See the following section of this manual for
maintenance procedures.
A bandsaw blade is a delicate piece of steel sub-
jected to tremendous strain. Be sure you use
quality blades of the proper width for the various
types of cutting operations. The Grizzly
G7211/7212 24" Bandsaw accepts 154
1
⁄2" blades
ranging in widths from
1
⁄2" to 1
1
⁄4".
Always use the widest blade possible for the
workpiece you are cutting. Use narrow blades
only for sawing small, abrupt curves and for fine,
delicate work. Bandsaw blades can be purchased
welded, set, and sharpened ready-for-use from
Grizzly’s catalog or website.
Always select and use good-quality saw blades
and choose the right blade for the job. Poor qual-
ity blades and improper use are often the cause of
premature blade failure.
Many conditions can lead to breakage. Blade
breakage is, in some cases, unavoidable, since it
is the natural result of the peculiar stresses that
bandsaw blades are subjected to. Blade break-
age is also due to avoidable causes. Avoidable
breakage is most often the result of poor care or
judgement on the part of the operator when
mounting or adjusting the blade or support
guides. The most common causes of blade break-
age are: (1) faulty alignment and adjustment of
the guides; (2) forcing or twisting a wide blade
around a curve or short radius; (3) feeding too
fast; (4) tooth dullness or absence of sufficient
set; (5) excessive tension; (6) upper blade guide
assembly set too high above the workpiece; (7)
using a blade with a lumpy or improperly finished
weld; and (8), continuously running the bandsaw
when not in use.
-16-
G7211/7212 24" Bandsaw
Figure 10. Side and front views of a standard
bandsaw blade.
Gullet Line
Gullet
Tooth
To remove the blade, ensure the power is discon-
nected and:
1. Loosen tension on the blade by turning the
tension control knob.
2. Remove the table insert and table pin.
3. Remove the fence and front fence rail.
4. Adjust upper guide bearings and lower
guide blocks away from the blade.
5. Open the upper and lower wheel covers
and slide the blade off both wheels. Use
caution, the blades are sharp!
6. Maneuver the blade through the table slot
then turn it 90˚ to move the blade between
the fence rail and the table.
To replace the blade, ensure that the power is dis-
connected and:
1. Slide the blade behind the fence rail and
through the table slot, ensuring that the
teeth are pointing down toward the table.
If the teeth will not point downward in any ori-
entation, the blade is inside out. See Figure
10 for typical blade geometry. Put on heavy
gloves, remove the blade, and twist it until it
is right side out. Re-install the blade.
2. Slip the blade through the upper and lower
guides and mount over the upper and lower
wheels.
3. Apply tension to the blade by turning the
tension control knob. Refer to blade ten-
sioning instructions earlier in this section.
Changing Blades
4. Rotate the upper wheel manually and check
blade tracking.
5. Adjust the upper guide bearings and lower
guide blocks as described earlier in this
section.
6. Close the wheel covers. Turn the yellow
guard locking knobs to lock them shut.
7. Replace the table insert and table pin, being
sure not to use excessive force.
8. Replace the fence rail and fence.
Use extreme caution when replacing blades.
Teeth are dangerously sharp and coiled
blades are prone to spring when released
from their packaging. Use gloves and safety
glasses or goggles whenever handling
blades. Failure to do so could result in seri-
ous personal injury.
G7211/7212 24" Bandsaw -17-
Changing Speeds
The G7211/G7212 24" Bandsaw provides two
speeds, 2800 and 3500 FPM, to make cutting
easier. In many applications, blade speed is a
matter of personal preference. Usually the higher
speed will produce the best results, but if the
motor is straining while cutting, try a slower blade
speed. Blade speed is also affected by the type of
wood, denser woods need a different speed than
a softer, lighter wood. Ultimately blade speed is a
matter of trial and error. Whenever possible test
the cut on a scrap piece first to gauge how well
the blade is cutting at the selected speed.
To change bandsaw speeds:
1. Turn the bandsaw power switch off and dis-
connect from power source.
2. Use a
9
⁄16" open end wrench to loosen the
lock nut and lock bolt on the lock system.
See Figure 11. This provides room to turn
the adjuster nut.
3. Use a
3
⁄4" box wrench to loosen the adjuster
nut. Loosen as needed to allow the shaft to
move. See Figure 12.
4. Select the pulleys for the speed desired. The
rear or smaller motor pulley provides the
slower, 2800 FPM, speed, while the front
pulleys are for the faster 3500 FPM speed.
See Figure 13.
5. Move the V-belt to the pair of pulleys which
provide the desired speed.
6. Tighten the belt by sliding the adjuster nut
and shaft up or down as needed.
7. Tighten the adjuster nut.
8. Bring the lock bolt head snug against the
adjuster nut. Tighten the lock nut.
Figure 11. Backing off lock bolt.
Figure 12. Loosening the adjuster nut.
Figure 13. View of pulleys behind lower wheel.
-18-
G7211/7212 24" Bandsaw
Stacked Cuts
One of the benefits of a bandsaw is its ability to
cut multiple copies of a particular shape by stack-
ing a number of workpieces together.
Before making stacked cuts, it is essential to
ensure that both the table and the blade are prop-
erly adjusted to 90°. Otherwise, any error will be
compounded with each piece cut from the top to
the bottom of the stack.
To complete a stacked cut:
1. Align your pieces from top to bottom to
ensure that each piece has adequate scrap
to provide a clean, unhampered cut.
2. Using brads in the waste portion of each
piece, secure all the pieces together.
3. Lay out the shape you intend to cut on the
face of the top piece.
4. Make relief cuts perpendicular to the outline
of your intended shape in areas where
changes in blade direction could strain the
woodgrain or cause the blade kerf to bind.
5. Cut the stack of pieces as though you were
cutting a single piece. Follow you layout line
with the blade kerf on the waste side of your
line.
Ripping is the process of cutting a board into two
or more thinner boards. The maximum board
width that can be ripped is limited by the distance
between the blade and the support column.
Maximum cutting width for this bandsaw is 24".
The important consideration when ripping is blade
selection. Generally, the wider the blade, the bet-
ter. In most applications, a hook or skip tooth style
will be sufficient. Also, since most ripped lumber
will be planed or sanded smooth, you can choose
blades with fewer teeth-per-inch. While blades
with fewer teeth-per-inch produce rougher cuts,
these types of blades offer larger gullet capacities
for clearing sawdust, less heat buildup, and yield
more horsepower per tooth.
To perform ripping operations:
1. The bandsaw must be adjusted correctly.
See Blade Tension/Tracking section.
2. The table must be square to the blade. See
Table Adjustment Section.
3. Use the widest blade available. The blade
must also be in good condition.
4. Use a fence to guide work.
5. Draw a reference line on the edge of the
board.
6. Support ends of the board if necessary.
7. Feed work slowly and evenly.
Ripping
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